Optical coupling structure
Through the one-piece optical coupling structure, the use of inclined coupling surfaces and aluminum-plated reflectors solves the problems of high cost and uneven lighting caused by too many optical parts in car lights, and achieves uniform light distribution and improved brightness.
Patent Information
- Application Number
- CN202422730425.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-11-08
AI Technical Summary
Existing headlights have too many optical parts, resulting in high manufacturing costs and uneven lighting.
An integrated optical coupling structure is adopted, including a first coupling surface and a second coupling surface that are parallel and inclined to each other, to achieve uniform distribution of light through reflection, and aluminum plating is performed on the coupling surface and the reflector surface to improve brightness.
The uniform distribution of light is achieved, the manufacturing cost is reduced, and the uniformity and brightness of the lighting effect are improved.
Smart Images
Figure CN223331542U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicle lamps, in particular to an optical coupling structure. Background Art
[0002] With the rapid development of automotive lighting technology, there are more and more shapes. The uniformity and aesthetics of the lighting effect are one of the problems that suppliers urgently need to solve. In the existing solution, light is emitted from the LED, passes through a series of action devices, and then is emitted from the light-emitting surface to achieve a more uniform lighting effect.
[0003] Most of the known solutions are direct or reflective. Regulations and uniformity are key considerations in industry design. To achieve uniform lighting requirements, existing technologies usually increase the number of diffusion times. Traditional conventional solutions usually split an optical component into two parts and add two layers of diffusion patterns on its inner surface to achieve uniformity requirements. Utility Model Content
[0004] The technical problem to be solved by the present invention is: in order to solve the technical problems of excessive optical parts, high manufacturing cost and uneven lighting in the prior art, the present invention provides an optical coupling structure, which is integrally formed, has good lighting uniformity, saves costs and can achieve a uniform light effect.
[0005] The technical solution adopted by the present invention to solve the technical problem is: an optical coupling structure, including at least one set of integrally formed coupling units, the coupling units including a first coupling surface and a second coupling surface parallel to each other and arranged at an angle to the horizontal direction, incident light entering the coupling unit is reflected by the first coupling surface and the second coupling surface and then emitted from the parallel direction, at least one of the first coupling surface and the second coupling surface having a light distribution pattern or leather texture.
[0006] Furthermore, in order to ensure that light directed toward the first coupling surface can be completely reflected by the second coupling surface, the projection lengths of the first coupling surface and the second coupling surface in the horizontal direction are the same.
[0007] Furthermore, in order to adjust and transform the structure of the coupling unit according to actual needs, the projections of the first coupling surface and the second coupling surface in the horizontal direction partially overlap or completely overlap.
[0008] Furthermore, in order to improve the brightness of the reflected light, the angle between the normal direction of the first coupling surface and the incident light direction is 5°-85°, and the light reflecting surfaces of the first coupling surface and the second coupling surface are aluminum-plated.
[0009] Furthermore, the angle between the normal direction of the first coupling surface and the direction of the incident light is 20°-85°, and the first coupling surface and the second coupling surface are transparent surfaces without aluminum plating.
[0010] Furthermore, the first coupling surface and the second coupling surface are smooth polished planes.
[0011] Furthermore, the coupling unit has an optical surface for receiving incident light in the front and a light-emitting surface for outputting emitted light in the rear, and the optical surface, the coupling unit and the light-emitting surface are integrally formed.
[0012] Furthermore, in order to achieve uniform light and form a unique lighting effect, the optical surface and the light-emitting surface have light distribution patterns.
[0013] Furthermore, in order to obtain parallel incident light, a reflector is provided in front of the optical surface, and the reflector, the optical surface, the coupling unit and the light emitting surface are integrally formed.
[0014] Furthermore, in order to improve the uniformity of the incident light, the inner surface of the reflector is aluminum-plated or the reflector has a light distribution pattern, and the inner surface of the reflector is a parabola.
[0015] Compared with the prior art, the beneficial effects of the present invention are:
[0016] The optical coupling structure of the utility model is manufactured by integrally injection molding the optical surface, the coupling unit and the light emitting surface, which can reduce costs. At the same time, the directions of the incident light and the outgoing light are consistent, which can achieve a uniform light effect and solve the problem of lighting uniformity.
[0017] The optical coupling structure of the utility model can combine and use multiple sets of coupling units, adjust and transform them according to actual needs, and reasonably utilize light efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the optical coupling structure of the present invention;
[0020] Figure 2 A schematic diagram of the three-dimensional structure of the optical coupling structure from another perspective;
[0021] Figure 3 This is the optical path diagram of the optical coupling structure;
[0022] Figure 4 This is a light path diagram of Example 2 of the optical coupling structure of the utility model;
[0023] Figure 5 This is a light path diagram of Example 3 of the optical coupling structure of the utility model;
[0024] In the figure: 1, reflector, 2, optical surface, 3, first coupling surface, 4, second coupling surface, 5, light output surface. DETAILED DESCRIPTION
[0025] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.
[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.
[0027] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.
[0028] Example 1, as Figures 1 to 3 An optical coupling structure includes a reflector 1, which collimates a light source into approximately parallel incident light. To improve the uniformity of the incident light, the inner surface of the reflector 1 is aluminum-plated or has a light-distributing pattern. To improve the focusing effect of the incident light, the inner surface of the reflector 1 is a parabola.
[0029] The optical surface 2 is located behind the reflector 1 , and the incident light is incident on the optical surface 2 in parallel and then on the coupling unit.
[0030] At least one coupling unit is located behind the optical surface 2. The coupling units include a first coupling surface 3 and a second coupling surface 4, which are parallel to each other and arranged at an angle to the horizontal. Incident light is reflected by the first coupling surface 3 and the second coupling surface 4 and then emitted parallel to the rear light-emitting surface 5. To ensure that all light directed toward the first coupling surface 3 is reflected, the horizontal projections of the first coupling surface 3 and the second coupling surface 4 are the same length, and their horizontal projections partially or completely overlap.
[0031] The optical path diagram of this embodiment is as follows Figure 5 As shown, through the total reflection / reflection of the first coupling surface 3 and the second coupling surface 4, it can be seen that the directions of the incident light and the outgoing light are consistent, which can achieve a uniform light effect and solve the problem of lighting uniformity.
[0032] In order to reduce manufacturing costs, the optical surface 2, the coupling unit and the light emitting surface can be integrally injection molded.
[0033] Alternatively, the reflector 1, the optical surface 2, the coupling unit and the light-emitting surface 5 may be integrally formed by injection molding. The reflector 1 may also be replaced by a condenser or other conventional optical elements.
[0034] The light-reflecting surfaces of the first and second coupling surfaces 3 and 4 are aluminum-plated to improve the brightness of the reflected light. The angle between the normal of the first coupling surface 3 and the incident light direction is between 5° and 85°. By adjusting the angle between the first and second coupling surfaces 3 and 4 and the horizontal direction, the angle between the normal and the incident light direction can be adjusted to meet different needs.
[0035] In different applications, the first coupling surface 3 and the second coupling surface 4 are transparent surfaces without aluminum plating. The angle between the incident light and the coupling surface is adjusted according to different scenarios. The angle between the normal direction of the first coupling surface 3 and the incident light direction is 20°-85°.
[0036] In order to achieve uniform light or form a unique lighting effect, at least one of the first coupling surface 3 and the second coupling surface 4 has a light distribution pattern or leather texture.
[0037] In order to obtain different lighting effects and brightness, the first coupling surface 3 and the second coupling surface 4 are smooth polished planes.
[0038] In order to achieve uniform light and form a unique lighting effect, the optical surface 2 and the light-emitting surface 5 have light distribution patterns.
[0039] Example 2, as Figure 4As shown in the optical path diagram, in order to adjust and transform the structure of the coupling unit according to actual needs, the horizontal projections of the first coupling surface 3 and the second coupling surface 4 overlap. In this case, it can still be ensured that the light directed to the first coupling surface 3 can be completely reflected.
[0040] Example 3, Figure 5 As shown in the optical path diagram, to adjust and adapt the structure of the coupling unit according to actual needs, the horizontal projections of the first coupling surface 3 and the second coupling surface 4 overlap, and the first coupling surface 3 and the second coupling surface 4 are tilted downward in the horizontal direction. In this case, it is still possible to ensure that all light directed toward the second coupling surface is reflected. At the same time, the reflector 1, optical surface 2, and light-emitting surface 5 can be installed independently as needed, without being connected to the coupling unit.
[0041] In Example 4, the coupling units in Example 1, Example 2 and Example 3 can be used in combination, and the coupling units are arranged in sequence to realize the assembly and use of multiple groups of coupling units. At the same time, these coupling units are also integrally injection-molded.
[0042] In summary, the present invention provides an optical coupling structure that is integrally formed, has good lighting uniformity, saves costs, and can achieve a uniform light effect.
[0043] The above description is based on the ideal embodiment of the present invention. Based on the above description, relevant personnel can make various changes and modifications without departing from the technical scope of this utility model. The technical scope of this utility model is not limited to the content of the specification and must be determined according to the scope of the claims.
Claims
1. An optical coupling structure, characterized in that: The invention comprises at least one set of integrally formed coupling units, wherein the coupling units comprise a first coupling surface (3) and a second coupling surface (4) which are parallel to each other and arranged at an angle to the horizontal direction, and incident light entering the coupling units is reflected by the first coupling surface (3) and the second coupling surface (4) and then emitted in parallel, and at least one of the first coupling surface (3) and the second coupling surface (4) has a light distribution pattern or a leather grain.
2. The optical coupling structure according to claim 1, wherein: The projection lengths of the first coupling surface (3) and the second coupling surface (4) in the horizontal direction are the same.
3. The optical coupling structure according to claim 2, wherein: The projections of the first coupling surface (3) and the second coupling surface (4) in the horizontal direction partially overlap or completely overlap.
4. The optical coupling structure according to claim 3, wherein: The angle between the normal direction of the first coupling surface (3) and the direction of the incident light is 5°-85°, and the light-reflecting surfaces of the first coupling surface (3) and the second coupling surface (4) are aluminum-plated.
5. The optical coupling structure according to claim 3, wherein: The angle between the normal direction of the first coupling surface (3) and the incident light direction is 20°-85°, and the first coupling surface (3) and the second coupling surface (4) are transparent surfaces without aluminum plating.
6. The optical coupling structure according to claim 3, wherein: The first coupling surface (3) and the second coupling surface (4) are smooth polished planes.
7. The optical coupling structure according to any one of claims 1 to 6, characterized in that: The coupling unit has an optical surface (2) for receiving incident light in front and a light-emitting surface (5) for outputting emitted light in the rear. The optical surface (2), the coupling unit and the light-emitting surface (5) are integrally formed.
8. The optical coupling structure according to claim 7, wherein: The optical surface (2) and the light-emitting surface (5) have light distribution patterns.
9. The optical coupling structure according to claim 8, wherein: A reflector (1) is provided in front of the optical surface (2); the reflector (1), the optical surface (2), the coupling unit and the light-emitting surface (5) are integrally formed.
10. The optical coupling structure according to claim 9, wherein: The inner surface of the reflector (1) is aluminum-plated or has a light distribution pattern, and the inner surface of the reflector (1) is a parabola.